See archives for previous discussions on this subject.

I have seen two women with this problem both of whom were using steroid
containing nasal inhalers for allergies.  Something I read while trying to
get to the bottom of their problem (maybe the US Drug Pharmacopia -- The US
DPI) mentioned that this would cause that.  I'll try to look around and find
that reference.  Ask them what drugs/herbs etc she is using.
Barbara

Barbara Wilson-Clay, BS, IBCLC
Private Practice, Austin, Texas
Owner, Lactnews On-Line Conference Page
http://moontower.com/bwc/lactnews.html